Nosy, shall we say? (5)
I believe the answer is:
nasal
'nosy' is the definition.
(relating to the nose)
'shall we say?' is the wordplay.
I cannot quite see how this works, but
'say?' could be 'as' (I've seen this in other clues) and 'as' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for nasal that I've seen before include "of a prominent feature" , "Beak's" , "Like some spray" , "Relating to one's hooter" , "Pertaining to the nose" .)